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= Modified Sparse Approximate Inverses = | = Modified Sparse Approximate Inverses = | ||
Based upon the well-known sparse approximate inverse preconditioner [http://www.computational.unibas.ch/software/spai/ SPAI], we developed the ''modified sparse approximate inverse (MSPAI)'' preconditioner. | |||
== Theory == | |||
MSPAI is a preconditioner for large sparse and ill-conditioned systems of linear equations. We extended the basic SPAI minimization to target form and further generalized it in order to add additional ''probing constraints'' | |||
[[Image:mspai.jpg]] | |||
== Implementation and Features == | |||
== Download == | |||
== References == | |||
under construction -- more information about MSPAI implementation and download will be available soon. | under construction -- more information about MSPAI implementation and download will be available soon. |
Revision as of 12:29, 4 August 2008
Modified Sparse Approximate Inverses
Based upon the well-known sparse approximate inverse preconditioner SPAI, we developed the modified sparse approximate inverse (MSPAI) preconditioner.
Theory
MSPAI is a preconditioner for large sparse and ill-conditioned systems of linear equations. We extended the basic SPAI minimization to target form and further generalized it in order to add additional probing constraints
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Implementation and Features
Download
References
under construction -- more information about MSPAI implementation and download will be available soon.